Mixing MSMA in a 50gal UTV Boom Sprayer on a Kawasaki Mule to spray @ 3mph

[FMFProperties]

OK, so to sum it up, if I use 43 oz of chemical per acre, I can spread it at 3mph and use 13 gallons of water, or I can go 5mph and I'll use 10 gallons of water (just guessing) to cover the same acre, and I'll get the same result because the important thing is the amount of chemical per acre that falls on that acre, no matter how much water I use.

On one side of my brain mathematically it makes sense since it's getting the same amount of 43 oz of chemical on the acre,
but on the other side of my brain it tells me that if I'm going faster, yes all 43 oz of chemical will still all fall on that acre, but it will be less amount that falls on the weeds as I drive by because there's less water falling from the nozzles to the weeds.

I'm waiting for that moment where my brain CLICKS and I understand it, just hasn't happened yet.

 

[Complete Turf Care]

OK, so to sum it up, if I use 43 oz of chemical per acre, I can spread it at 3mph and use 13 gallons of water, or I can go 5mph and I'll use 10 gallons of water (just guessing) to cover the same acre, and I'll get the same result because the important thing is the amount of chemical per acre that falls on that acre, no matter how much water I use.

You are correct again. You will get close to the same result using 10 gal per acre or 13 gal. per acre. I would not go less than 10. Some pesticides require more gallons per acre to get better coverage. MSMA is not that critical, and it has a surfactant in it which helps get better coverage. Fungicides are one type of pesticide that needs higher gallons per acre.

Also, droplet size will affect coverage. Smaller droplets will give better coverage but will also increase the risk of drift. Droplet size can be manipulated by changing pressure or changing nozzles.

My sprayer is calibrated at 15 gal. per acre. I travel at 6mph and have 40 psi pressure.

 

[jwmorris]

Regarding the hay fields, why are you asking about hay fields?

The grass is for looking at after you use MSMA not for animals to eat.

MSMA (monosodium methyl arsenate) is not for pasture use - Texas A&M Veterinary Medical Diagnostic Laboratory

A cattle owner in eastern Texas noticed several of the 50 weaned calves in his coastal pasture had diarrhea and didn’t seem to want to eat. The pasture had been sprayed with monosodium methyl arsenate (MSMA) to kill weeds about 10 days prior and was fertilized at 300 lbs per acre three days...

tvmdl.tamu.edu

 

[1 Old Man]

Regarding the hay fields, why are you asking about hay fields?

Because your first post showed a picture of what appears to be a field
that would/might be used for haying. You don't use MSMA on pastures
or hay fields. Lots of chemicals have grazing or hay restrictions.

 

[jonsstihl]

It's a grass runway for aircraft to take off and land on, there better not be any animals grazing on it hope its not corrosive. maybe keep traffic off of it until it dries

 

[1 Old Man]

It's a grass runway for aircraft to take off and land on, there better not be any animals grazing on it hope its not corrosive. maybe keep traffic off of it until it dries

ooopppsss. You're correct. I missed the "it's a turf grass runway".
Had to go back and re-read....thanks.

 

[FMFProperties]

The grass is for looking at after you use MSMA not for animals to eat.

The grass is for landing aircraft on.